TypeError: Cannot read property 'namespaceUri' of null

[d7gonzo]

I have been trying to utilize the complete TEI schema for editing documents. The exact file I downloaded from them is the XSD file labelled All.

The complete error that appears:

TypeError: Cannot read property 'namespaceUri' of null
at SchemaProcessor.getBuiltInType (xsd2json.js:1073)
at SchemaProcessor.build_restriction (xsd2json.js:998)
at SchemaProcessor.build (xsd2json.js:761)
at SchemaProcessor.build_simpleType (xsd2json.js:852)
at SchemaProcessor.build (xsd2json.js:761)
at SchemaProcessor.build_attribute (xsd2json.js:810)
at SchemaProcessor.build (xsd2json.js:761)
at SchemaProcessor.buildTopLevel (xsd2json.js:757)
at SchemaProcessor.build_schema (xsd2json.js:741)
at SchemaProcessor.processSchema (xsd2json.js:628)

The javascript function used from index.html:

	$(function() {
	      var extractor = new Xsd2Json("tei_all.xsd", {"schemaURI":"schemas/tei/"});

	      $("#mods_editor").xmlEditor({
	              schema: extractor.getSchema()
	      });
	});

Also came across this exact error when trying to import a Menota schema I converted using the TEI Roma tool.